Which one of the following is an example of non-metallic mineral based industry ?
Show Hint
Non-metallic minerals lack metallic elements (Limestone, Gypsum, Mica, Clay).
Cement Industry = Uses Limestone + Gypsum = Non-metallic Mineral-based Industry.
- Aluminium industry
- Iron and Steel industry
- Copper industry
- Cement industry
The Correct Option is D
Solution and Explanation
• Mineral-based industries utilize raw mineral materials extracted from the Earth's crust to manufacture secondary products.
• They are broadly classified into two categories:
• Metallic Mineral-based Industries: Use ores containing metallic elements (e.g., iron ore, bauxite, copper ore). These are further divided into:
• Ferrous: Containing iron (e.g., Iron and Steel industry).
• Non-Ferrous: Not containing iron (e.g., Aluminium and Copper industries).
• Non-Metallic Mineral-based Industries: Use industrial earth minerals that do not contain metals (e.g., limestone, clay, gypsum, silica, mica, granite).
Step 1: Analyse the raw material for each industry
Option (A): Aluminium Industry
• Uses Bauxite, which is a metallic mineral ore containing aluminium oxide.
• Belongs to the non-ferrous metallic mineral industry. Therefore, \[ \boxed{\text{Option (A) is Incorrect.}} \] Option (B): Iron and Steel Industry
• Uses Iron Ore, which is a metallic mineral.
• Belongs to the ferrous metallic mineral industry. Therefore, \[ \boxed{\text{Option (B) is Incorrect.}} \] Option (C): Copper Industry
• Uses Copper Ore, which is a metallic mineral.
• Belongs to the non-ferrous metallic mineral industry. Therefore, \[ \boxed{\text{Option (C) is Incorrect.}} \] Option (D): Cement Industry
• Uses Limestone, Clay, Silica, and Gypsum as primary raw materials.
• Limestone and gypsum are non-metallic sedimentary rock minerals.
• Therefore, it is a non-metallic mineral-based industry. Therefore, \[ \boxed{\text{Option (D) is Correct.}} \]
Step 2: Choose the correct answer
Among the given options, the industry based on non-metallic raw materials is the Cement industry. \[ \boxed{\text{Correct Answer = (D) Cement industry}} \]
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